Answer
See below.
Work Step by Step
$(f-g)(x)=f(x)-g(x)$
$(f-g)(x)=f(x)-g(x)=x^2+4x-x-2=x^2+3x-2$
Plug in $x=-1$ into $(f-g)(x)$: $(f-g)(-1)=(-1)^2+3(-1)-2=1-3-2=-4$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 2 - Test - Page 175: 14
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